I don't have interop issues with your examples either. Calling Java from Kotlin is very pleasant.
What I found is that it's the other direction that takes some thought. For example, my Kotlin library needs more help than just @Jvm annotations to be usable from Java.
What I found is that it's the other direction that takes some thought. For example, my Kotlin library needs more help than just @Jvm annotations to be usable from Java.